Why I'm asking is that because few days ago both gear cable jumped off from the pins on the top of the gearbox..called RAC and the guy managed to find some sort of washers to put on that pin so the cables won't fell off but obviously it's just temp solution..
I'll take some photos after work..

well, seeing that drawing nothing missing but the gear cables defo jumped off from the pin (where nr 47&50 is)..
see photos below, that washer thing what the rac guy has used to replace whatever was there before..